Adam Lambert, Queen Perform At MTV European Music Awards (VIDEO)

The show must go on -- literally.

Adam Lambert may be facing legal challenges from a record company that claims he was under contract while an "American Idol" contestant, but the singer showed no signs of strain when he took the stage alongside Queen for a spectacular performance at the MTV Europe Music Awards.

The crowd at Belfast's Odyssey Arena roared as Lambert, dressed head to toe in black leather, crooned a medley of the band's classic hits "Show Must Go On," "We Will Rock You," and "We Are the Champions."

It was a fitting match for Lambert, whose theatrical performance style has frequently been compared to the legendary rock band's late frontman, Freddie Mercury, who died of AIDS complications in 1991. He isn't the first modern pop star to team up with Queen in recent months; Lady Gaga enlisted the band's guitarist Brian May for her MTV Video Music Awards performance in August.

Watch Lambert perform with Queen below:

Correction: an earlier version of this article was amended to correct the spelling of Brian May